Solve -2*b - 4 = 0, -10 = -4*n - b - 2*b for n.

4

Solve -n + 10 = -3*o, -3*n + 6*n + 25 = -2*o for n.

-5

Solve 5*r - z = z + 27, r + z - 4 = 0 for r.

5

Solve 3 = -k + 5*n + 7, 5*n + 20 = 5*k for k.

4

Solve 2*n - 4 = 5*s, 5*n - 3*s - 27 = -36 for n.

-3

Solve 0 = -2*q - 5*y, q - 4*q = -3*y for q.

0

Solve -162*t + i + 12 = -166*t, -t - 5*i = -16 for t.

-4

Solve -5*k - 10 = -l, 8*k + 4 = 2*l + 6*k for l.

0

Solve -26 = -4*r - 2*q, -q = -0*r - 3*r + 7 for r.

4

Solve 4*n + 3*m = -21, -5*n + 4*m = 5*m + 18 for n.

-3